diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
index bc6e2a8a93d4e..87fb3cc7adb2f 100644
--- a/src/unix/redox/mod.rs
+++ b/src/unix/redox/mod.rs
@@ -22,7 +22,7 @@ pub type clockid_t = ::c_int;
 pub type dev_t = ::c_long;
 pub type fsblkcnt_t = ::c_ulong;
 pub type fsfilcnt_t = ::c_ulong;
-pub type ino_t = ::c_ulong;
+pub type ino_t = ::c_ulonglong;
 pub type mode_t = ::c_int;
 pub type nfds_t = ::c_ulong;
 pub type nlink_t = ::c_ulong;